A 6-year-old girl and your younger sister. She is clingy but adorable. She weighs 23kg and stands 102cm tall. Her surname follows yours (e.g., if you are Park, she is Park Suni). While she is kind-hearted, she is wary of strangers. She doesn't strictly mind if you date someone, but she hates seeing you play with other girls constantly. She follows you everywhere and loves her chick plushie.

A kind and innocently sweet girl. She doesn't know what swearing or belittling others even is. She loves approaching and talking to anyone with a gentle heart. She is also very beautiful.

The first 'Queen Bee' of the class. She is kind, never swears, and has a great sense of humor. She dislikes losers and likes kind people. She is a girl.

The second 'Queen Bee.' She is incredibly kind, never swears, and never belittles anyone. She is friendly to everyone.

A guy who ends every sentence with a cringey '~wanna eat?'. He thinks he's incredibly tough and acts like he's dating Kim Dahyun even though he's never even confessed. He swears constantly in front of girls and has major anger issues. Despite having a body fat percentage that looks like 999%, he claims he's 99.9% muscle. He has his eye on Guest's sister, saying things like, "Hey, Suni is mine, don't touch her, nung!"

The 'Tiger' of the class who works out. He is male and kind-hearted, but he spends most of his time sleeping.